Lubricator.



No. 814,016. Y PATBNTED MAR. 6, 1906.

W. B. BRYANT, G. M. WOLGOTT 6: R. DAVIDSON.

LUBRIGATUR.

APPLICATION nun 121.23. 1904.

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7 53.7114, 1 itormya m Q7/1529?) 6.1mm GM 94% No. 814,016. PATENTED MAR. 6, 1906.

W. E. BRYANT; G. M. WOLGOTT 6; R. DAVIDSON. LUBRIGATOR.

APPLIGATION FILED APB-.23, 1904.

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N0. 814,016. PATENTED MAR. 6, 1906. w. B. BRYANT, e. M. WOLCOTT & R. DAVIDSON.

LUBRIOATOR.

APPLIUATIGH rum APR.23.1904.

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g $2 mgltomey UNITED STATES PATENT OFFICE.

WILLIAM E. BRYANT, GEORGE M. \VOLGOTT, AND ROBERT DAV IDSON, OF

DETROIT, MlCHlGAN, ASSIGNORS TO MICHIGAN LUBRICATOR GOM- PANY, OF DETROIT, MICHIGAN, A CORPORATION.

LUBRICATOR.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed April 23,1994. Serial No. 204,590.

To mil whom it may concern.-

Be it known that we, WILLIAM E. BRYANT, GEORGE M. Women, and ROBERT DAVID- SON, citizens of the United States, residing at Detroit, in the county of Wayne, State of lvlichigan, have invented certain new and useful Improvements in Lubricators; and we do declare the followin to be a full, clear, and exact description 0 the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to lubricators, and more expressly to locomotive lubricators wherein provision is made for feeding the oil drop by drop through si lit-feed glasses to the locomotive-engine cy inders and to the air-brake engine-c *linder, the lubricator herein shown being 0 the triple-feed type; and the invention consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.

The objects of the invention are to provide a sight-feed lubricator of the bulls-eye pattern wherein the arrangement is such as to produce a simple and inexpensive apparatus capable of accurately and positivel feeding the oil to the parts to be lubricate A further object is to produce a bulls-eye sight-feed lubricator wherein the plural sightfeed features are arranged in a horizontal plane in connection with a cylindrical body or reservoir.

A further object is to provide a lubricator having the sight-feed features located exterior to the reservoir upon, the to thereof in line with the minor or diametrica axis of the reservoir and to locate the condenser above the plane of said sight-feed features and connect said condenser through a suitable passage with the bottom of the reservoir.

A further object is to provide a sight-feed lubricator having a cylindrical reservoir upon the top of which the sight-feed features are mounted, locating the condenser above said sight-feed features, and connecting the oildischarge arms by means of equalizin tubes with the source of steam which supp ice the condenser.

A further object is to provide a sight-feed lubricator of the bulls-eye pattern with circular observationlasses mounted in position so as to enabli: them to be readily removed and replaced when desired.

The above objects are attained by the structure illustrated in the accompanying drawings, in which Figure 1 is a front elevation of a lubricator invoiving our invention. Fig. 2 is a side ele vation of the lubricator. Fig. 3 is a central vertical section through the lubricator as on line 3 3 of Fig. 1. Fig. 4 is a transverse section through the bull's-eye sight-feed features and through the reservoir. Fig. 5 is a fragmentary view in section through one of the oil deliver arms. Fig. 6 is a fragmentary view, tpart y in section, showing the connection 0 the auxiliary oiler with one of the side arms that delivers oil to the engine-cylinders.

In lubricators of the balanced condensation-displacement type, such as herein shown, it is necessary to build the reservoir and all of the connected parts sufficiently strong to Withstand boiler-pressure, and sometimes the ressure in the reservoir even exceeds the oiler-pressure, owing to the expansion of the oil when heated to a high temperature. Because of the presence of this high temperature Within the lnbricator it has been found necessary to substitute the bulls-eye sightfeed glasses for the cylindrical type of sightfeed glasses,which have been commonly employed. In multiple-feed lubricators it is essential that the sight-feed features be arranged in a horizontal plane, so that the engineer may readily observe the feeding of the oil therethrough at a glance. here these sight-feed features have been located in the body of the reservoir in order to arrange them in the same horizontal plane, it has been necessary to make the reservoir oblong in shape, the opposed sides of the body being flat and parallel. In order to strengthen the body of the reservoir having this flat shape, so as to withstand the pressure to which it is subjected, it was found necessary to tie the opposite walls of the cup by interior tubular braces, a structure ex ensive to mold and requiring a great deal 0 labor to produce. We employ the simple cylindrical form of reservoir, in which, because of its shape, no tubular braces are necessary to strengthen it and in which there are no cored passages, and we I arrange for placing our sight-feed features in l the same horizontal plane by mounting them l upon the topof the reservoir transversely thereof and locating the condenser above the sight-feed features. By this arrangement the oil is enabled to pass directly from the reservoir between the sight-feed glasses to the oil-discharge arms, which are connected to the several tallow-pipes at such height as to provide the requisite fall to the respective cylinders.

Referring to the characters of reference in the several views of the drawings, 1 designates the cup or reservoir in which the lubricant is contained and which is cylindrical in shape. Formed integral with. and located in a row upon the top of the reservoir are the barrel members 2 and 3. These barrel members are supported upon the neck portions 4 and 5, which connect them with the top of the lubricator. Formed through the neck portion of each of said barrel members is an angular oil passage-way 6, which communicates at its lower end with the top of the reservoir and terminates at its upper end in an oil-delivery nozzle 7, which projects centrally within the barrel member. Con'imunicating with each of the oil passageways 6 is a controlling valve 8,which regulates the flow of oil therethrough, said valve screwing through a boss 9 and having around the stem thereof a gland 10. The oil is caused to pass upwardly from the nozzles 7 in drops, being led by the water of condensation which flows into the reservoir and dis laces the oil therein. The drops of oil after caving the nozzle in the central barrel 2 ass upwardly through thechannel 11 into the oil-discharge arm 12, from which depends a coupling 13, to which is connected the upper end of the tallow-pipe, (not shown,) which leads to the cylinder of the air-brake pump. From the nozzles in the side barrels 3 the oil passes upwardly through the connections 14 into the oil-discharge arms 15, the ends of which are connected to the tallowpipes 16, that lead to the opposite cylinders of the locomotive. The condenser 17 is located above the central si ht-feed barrel 2, and its base screws into a "itting 18, formed integral with said. barrel, there being in the lower portion of said condenser a water pas sage-way 1.9, down which the water of condensation is adapted to flow, said passageway communicating with the recessor chamber 20 in said fitting, in which the base of the lubricator is screwed. Extending downwardly from said chamber 20 is a cored duct or way 21, which asses around one side of the si ht-opening t ough the barrel 2 in the wall t ereof, thence downwardly through the i neck 4, supporting said barrel, its lower end communicatin with the tube 22, which screws upward yinto the top of the reservoir,

and whose lower end terminates near the botinto the side of the condenser is an internallythreaded plu 23, which receives the threaded stem 24 of the valve 25, through the operation of which the flow of the water of condensation may be regulated, thereby regulating the feed of the oil from the reservoir through the several sight-feed passages.

The glasses which are located in the opposite ends of the sight-feed barrels to render possible the observation of the passage of the oil from the nozzles 7 are in the form of circular disks 26. These glasses are seated in tubular fittings 27, which are externally threaded and are adapted toscrew into the opposite tapped ends of the sight-feed barrels, there being within the inner ends ol' each of said tubular fittings a washer 28, which bears against the inner face of said glass, and with in the outer ends ofeach of saidifittings a washer 29, which bears against the outer face of said glass and is confined by theannular shoulder 30 on the fittings, whereby as the fittings 27 arcscrewed into the ends of the barrel the inner washer is forced against the annular shoulder 31 within the barrel, thereby confining theglass between both washers and enabling sufiicientpressure to be exerted upon the washers to make a tight joint. With this arrangement where it is desired to remove a glass for cleaning or other purpose it is only necessary to unscrew the tubular fitting 27, whose outer end is provided with a hectagon formation, as shown in Fig. 1, to enable the application of a wrench thereto. Vl hen setting a glass, it is placed within said fitting between the washers 28 and 29.and the fitting screwed into place.

For the purposeof supplying steam to the condenser a fitting 32 is screwed into the top thereof, which is connected through its threaded boss 33 with a steam pi e (not shown) connected with the boiler. *or the purpose of equalizing the lubricator there is employed an equalizing-tube 34, which leads from the fitting 32 and connects with the oildischarge arm of each sight-feed :barrel, the tube leading to the central arm 12 pass'm downwardly in the rear of the condenseranfi the tubes leading to the side arms 15 assing downwardly upon 0 posite sides of t 1e condenser, as clearly sliown in Figs. 1 and 2. The presence of steam in the oil-discharge arms causes the chambers within the sightf'eed barrels to fill with water up to the level of the oil-discharge openings into the feedarms, so thatthe oilwhich passes from the nozzles is enabled to rise through said water between the observation-glasses-and flow out the discharge-arms to the tallow-pipes. In order to drain the water from between the sight-feed glasses whendesired, a small channel 35 is formed in the neck below the sightfeed barr'el, which communicates with the en larged passage 36, leading outwardly through the boss 37, in which is seated the valve 38, adapted to close the opening of the channel 35, said valve having an aperture 39 through its stem which when the valve is oil its seat allows the water to flow from the channel through the hollow stem of the valve.

On referring to Figs. 3 and 4 it will be seen that there is a screw-plug in the opening in the fittin 18, which communicates with the interior 0 the barrel 2. The 0 ening closed by said plug is necessary to alihw the introduction of the nozzle 7 and the screwing of said nozzle into place, so as to communicate with the oil-passage 6. After the nozzle is in position said plug 40 is used to close said opening, so as to cause the water of condensation to ass downwardly through the assage 21 ant prevent it from flowing direct y in to the barrel 2. From the side barrels 3 the nozzles are introduced through the connections 14, which are closed by the screw-plugs 41.

By this arrangement a large bull's eye sight-feed is afforded which enables the engineer to have an unobstructed view of the passage of the oil, as he can see entirely through the barrels because of the opposed glasses in the 0 posits ends thereof, which aiiord suflicientlight to enable the flow of oil to be readily observed. At the same time the danger incident to the breaking of the ordinary cylindrical glass is obviated.

To rovide for su plying oil to the enginecylintiiar should the ceding of the oil from the reservoir become interrupted or temporarily stopped by the clogging of one of the oil'passages, each of the oil-feed arms is provided with an auxiliary oiler in the shape of an oilcup 42, which is mounted upon and communicates with the oil-feed arm through an oil passageway 43, leading from the interior of the cup and adapted to be closed by a valve 44, as shown in ig. 3. A removable cap enables the oil-cup to be filled, at which time the valve 44 is closed, because of the fact that there is a high pressure in the feed-arm, with which the cup communicates. After the cup has been filled it is closed by the hand-screw 46, when u on opening the valve 44 the oil in the on wi 1 flow out throu h the oil-passage 43, owmg to the fact that the tube 47, which communicates at its lower end with said passage and extends to the upper end of the cup, equalizes the pressure therein.

To enable the reservoir to be replenished with oil after it has become exhausted, afillerplug 48 is employed which screws into a hollow use 49, which communicates with the interior of the cup.

To provide a gage-glass which will indicate the quantity of oil in the reservoir, there is emplo ed a rectangular frame 50, adapted to fit wit in a corresponding rece tacle 51within the body of the lubricator, having an oilchannel 52 at the back thereof which is open at the bottom and which at the top communicates with the interior of the cup through the opening 53. Seated within the frame is a rectangular glass 54, which is confined between the washers 55. Pressure is exerted upon said lass to maintain a tight joint by reason of t 1e inner washer engaging the rear wall of the receptacle as the frame is crowded therein through the operation of the screws 56, which pass through the margins of said frame into the wall of the reservoir, the outer washer being confined by the shoulder 57 at the outer edge of the frame.

Projecting from the rear face of the oil-reservoir is a threaded stud 58, which is provided for the purpose of mounting the lubricator in position. At the bottom of the lubricator is a drain-cock 59, whch allows the contents of the reservoir to be drawn off.

Having thus fully set forth our invention, what we claim as new, and desire to secure by Letters Patent, is

1 Acondensationdisplacement lubrieator, comprising a condensing-chamber, an oil-reservoir, a pluralit of independent sight-feed features arrange in a row on the top of the reservoir and communicating directly with the interior of the reservoir through said top, and an independent equalizingtube for each sight-feed feature.

2.Acondensation-displacementlubricator,

comprising a condenser, a cylindrical oilreservoir, a plurality of sight-feed features arranged in a row across the top of said reservoir, each sight-feed feature communicating directly and independently with the interior of the reservoir, and an inde endent equalizngtube for each sight-feed eature.

3. In a lubricator, the combination of the reservoir, an oblong sight-feed member mounted upon the to of the reservoir and communicating direct y therewith, observation-glasses in the op osite ends of said sightfeed member, a disc arge-arm communicating with the sight-feed member at a point above said glasses, a condenser communicating with the bottom of the reservoir, and an exterior eqrializin -tube connecting the corn denser with the oi -discharge arm.

4. In a lubricator, the combination of the reservoir, a hollow sight-feed member formed integral with and. located upon the top of said reservoir and communicating directly therewith, an observation-glass in each end of said hollow sight-feed member, an oil-discharge arm communicat ng with said hollow mem her at a point above said glasses, a condenser communicating with the bottom of the reservoir, and an equalizing-tube communicating with the oil-discharge arm independently of the si ht-i'eed member.

5. n a lubricator, the combination of a cylindrical reservoir, a plurality of sight-feed members formed integral with and mounted upon the top of said reservoir, each sight-feed member communicating directly therewith, said sightfeed members forming oblong sight-feed chambers whose major axes extend in horizontal planes, an observationglass in each end of each of said sight-feed members, a condenser mounted upon one of the sight-feed members, there being in the Wall of said member a passage-Way connecting the condenser with the bottom of the reservoir, an oil-discharge arm communicating with each of said sight-feed members, and an equalizing-tube connected with each of said discharge-arms.

6. In a lubricator, the combination with the cylindrical reservoir, of a plurality of sight-feed members mounted upon the top of said reservoir, said. sight-feed members forming oblong si lit-feed chambers, there being a valve-controIled passage-way for each of said chambers formed through the top of the reservoir, establishing direct communication between said reservoir and chambers, an obseration-glass at each end of each of said sightlecd chambers, a condenser mounted upon the middle of said sightefeed members, and communicating with the bottom of the reservoir, an oil discharge arm communicating with each of said. sight-feed chambers, and an equalizing-tube connected With each of said discharge-arms.

In testimony whereof We sign this specification in the presence of two witnesses.

E. S. WHEELER, I. G. H oWLETT 

